Acetylene-generator.



E. V. PENNINGTON ACETYLENE GENERATOR.

APPLICATION FILED AUG 16,1912v Patented Mar. 11, 1913.

witneooea EMORY V. PENNINGTON, OF MOHAWK, TENNESSEE.

ACETYLENEGENERATQR.

Specification of Letters Patent.

Patented Mar. 11, 1913.

Application filed August 1c, 1912. Serial No. 715,417.

To all whom 1' It may concern 7 Be it known that It EMORY V} Presume- TON, a citizen of the United States, residing at Mohawk, in the county of Greene and- 5 State of Tennessee, have invented certain new and useful Tmprovcmcnts in Acetylenc- Generators; and I do declare the following to be a full, clear, and exact description of the invention, such as nullenablc others 7 1O skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in acetylene gas generators.

One object of the invention is provide an acetylene gas generator having an improved construction and arrangement of; carbid feeding mechanism, whereby all danger of overcharging the generator is obviated,

- Another object 18 to provide an improved bid feed mechanism.

A'further object is to provide an acetylene generator which will be extremely simple,

strong, durable and inexpensive in construc tion, efficient and reliable noperat on andu'ntaihng low 'in which an evenpr'es'sure and of gas is maintained,

In the accompanying drawings z Figure 1 IS a central verticalsection; FIgJZ Is an enlarged central vertical section of the carbid feeding mechanism.

My improved gas generator comprises a generating tank 1 having in its upper end an openingQ, which is surrounded by an upwardly projecting threaded flange 3, on which is screwed a cape. Arranged in the opening 2 is a carbid hopper 5 having on its upper end an annular radially projecting flange 6, which engages the edge of the opening 2 in the upper end'of the generator tank and is preferably screwed or otherwise firmly and removably secured to said edge.

The bottom of the hopper 5 tapers to acentral discharge opening 7 and'to the bottom of the hopper over the opening 7 is secured a depending valve casing or incasur ing chamber 8, in which is arranged a cen tral valve seat?) and a lower valve seat 10. The bottom of the-hopper a-bovethe valve casing 8 forms an upper valve seat 11. The valve seats 9, l0 and 11 taper toward contral discharge openings and arranged through said openings is a valve stem 12 which extends upwardly through a stutling box 13 on the cap 4. of the generating tank means for automatically controlling the carscribed. On the valve stem 12 in the hopper 5 and adapted to engage the valve seat 11] is an upper feed valve 15, which is adapted.

to open and close the discharge opening 7 which connects the hopper 5 with the measuring chamber 8. I form to prevent the carbid from accumulat ing or catching on the'valve. On the lower portion of the stem 12 within the chamber 8 and adapted to pass through and to close the opening in the seat 9 is an intermediate feed valve 16 which is herc shown and is preferabl in the form of a double cone to obviate any danger of the carbid accumu-- lating thereon, to permit the carbid to pass freely around the valve when the latteris in open position and to facilitate the passage of the valve 16 in either. direction through the opening in the valve seat 9.

The valve 15 is of conicalvalve operating lever 14 hereinafter-dc ()n thcextreme lower end of the valve stem 12 is secured a lower conical shap'ed valve 17, which is adapted to open and closethe" discharge opening in the lowerend o f t'hei go casing or chamber 8. v p

Arranged in a suitable positionadj ac'ent to the generating tank 1' IS' a gas reserve tank 18,-said tank being connected with the 1 generator tank 1 by a gas conducting pipe 19. The pipe 19 is connected near'its upper end 'with the upper portion of the tank 1' and has its opposite end extending for a suitable distance up into the tank 18, as

shown.- In the pipe 19 immediately below its connection with the tank 1 is a cut-off valve 20, and to the pipe 19 between the generator tank 1 and the-tank 18 is conncclcd a gas supply pipe21 which leads to the burners to be supplied by the generator.

Arranged across and secured to the upper end of the reserve tank 18is a centrallydisposed guide bar 22. The bar22 is pref erably formed in sections, the inner en which are engaged with a four-way cou pling 23. Slidably engaged with the vertical branches or members of the coupling 23 is a. lever operating rod 24, the lower'end of which is secured to a bell 2 h bell is slidably mounted i-n-the tank 18 and has its lower end inserted in the water contained in the lower portion of the tank 18, whereby a gas-tight closure is formed for the lower end of the bell. The lower end otlhc bell is guided and held in position in the tank 18 by a guide bar 26, which has 1 and is connected at its upper end with a its ends secured to the sides of the bell and sof ter will be raised in the tank 18, thus raising. vthe lever operating rod '24 and causing the latter to raise the lever 14 and close the valve 17 at the lowerend of the measuring chamber 8 and open the valves-15 and 16 thus cutting off the supply of carbid to the generator tank and permitting the cart-id to till the measuring chamber 8. As the gas is consumed and drawn from the bell 25, the

. latter will lower in the tank 18, thus lowering the valve operating lever to open the feed valve 17 and close valve l5causing valve 16 to pass through the opening in valve seat 9, thereby discharging. a fresh measure charge of carbid into the water of the generator tank from which a fresh supply of gas will be formed and conducted to the bell 25, as will be readily understood. The charge consists of the amount of carbid contained in chamber 8. The intermediate valve 16 is so positioned on the stem 12 as to close the opening in valve seat when the valves 15 and 1'? are about half way more or less open to provide for" the cutting oil of the feed should the machine for any reason stop when the valves 15 and 17 are in this position. The valve 16 is adapted to pass through said opening in the valve seat 9 during the raising andlowering of the stem-12 when the machine is in operation. Should the stem 12 stop operating when the valves 15 and ii are slightly open, the valve 16 will partially close the opening in valve and thus greatly retard the passage of the carbidhnd the larger lumps would choke the reduced passage and permit only fine particlesto pass through; In the upper end of the bell 25 is a discharging nipple 28 having a valve 29, whereby air; may be released from the bell to permit the same to fill with gas.

The vaive operating lever 14 is pivotally and adjustably secured at one end to a supporting bracket 30 arranged on the upper end of the generating tank 1 and the free end of the lever has an adjustable connection with the upper end of the lever operating rod 24 of the'gas bell, shown at 31. The

upper end of the valve stem 12 is pivotally connected with the lever 14 adjacent to its connection with the bracket 30, as shown.

(in the upper end of the gas conducting pipe 19 is a pressure gage 32 and crmnected lo the pipe il below the gage 32 and above tlu-n onnectii'in of said pipe with the generitor tank a blowpl't pipe 3 3, in which is arranged a safety valve 34 and a cutolt va ve Also connected with the upper end of the pipe it) below the gage 32 and in the hopper.

above the connection of saith pipe with the generator pipe an air exhaust pipe 36..

The pipe 36 connects with the blow-oft pipe and has arranged'therein a cutoff valve 37. any air which may enter the generating tank while the hopper 5 is being recharged may be exhausted into the blow-oil pipe 33 which extends ,upwardlyand .out of the building.

In onesideof the generating tank 1 near the bottom thereof is arranged a drain-cock 38, whereby the water and waste carbid may be drawnfr'oin the generating tank and in the reserve tank 18 is also arranged a draincock 39, whereby the water may be removed from this tank whenklesired. In the-carbid hopper 5 isarr anged a freely movable follower plate 40, which is'of substantially the. same size as the cross sectional area of the hopper and is adapted to rest on the carbid in said hopper and is provided with a centrally-disposed aperture, through which the valve stem 12 passes. Connected more plate 40 is a graduated gage rod 41, which extends upwardly through a packing gland 42 in the cap 4 of the oar-bid hopper; The plate 40 and rod 41 'when thus arranged will lower as the carbld is discharged from the hopper and the' plate resting on the entire body of carbid will accurately'indi--' cate the exact quantity of carbid contained By constructing and arranging the carbid hopper and feed valves as hereinshown and described, it- Wlll be seen that when the valves are actuated to open the lower end of the measuring chamber the upper valve will. close the lower'end of the hopper, thus permitting the discharge of only the carbid contained. in the measuring chamber 8; By providing tlie'central valve 16 andithe valve seat 9 in the center of the valve casing, the

discharge opening in the valve seat 9 will be closed by the valve 16 when the valves 15 and l'Z'are haif'way open,so that the contents of the valve casing will. not be discharged all at once. By this arrangement any danger of an overcharge of carbid is obviated, should'the stem 12 stop operating while the valves 15, 16 and 17 are open and it sufiicient gas is generated by the preliminary charge of the'carbid in the lower 01" tion of the valve casing8, to cause the ell to rise and actuate the lever 14 the lower valve of. the feeding mechanism Will immediately closed, thus preventing the-carbid contained in the upper portion of the valve casing from discharging into the generator. charge of the carbid does not generate a suliicient quantity of gas for raising the bell 25, the valve stem will continue to move down until the central valve 16 passes through the opening in valve seat 9 and the upper valve to closes, thus permitting the By means of the air exhaust pipe 16- If, on the other hand, the first dis-* entire llnJtQlltS f the chamber 8 to he discharged into the generator. soon as this charge of carbiil hm generated sutliciont gas to minute the hell 25 the lever 14; will im flleditltlk'ly raise. the valve stem the rehy clsing; the lower valve 17 and npening the npvalve tin \vhnLh Wit? iern'nt a fresh I oharge 0t martini to enter the valve casing. By this :iri'ungcnnmt anti upvmtion f the valves, 1'! will by? Slttli that (hi? feeding of the carhiit tn thr: wanemtor rhmnher is controlled h v the rise uni tntt of the gas hell and an tlitil {t?' v an nvervlnvrge hiring n-(lm tiw ghnvrutni' 1* gwwitivcly (,illl'lfittl.

The vzii i iiilti i? preferably have :1 screw thwzuied. s genie-mt with the luwer portion 01' hc val m HiKHl l2, whm-ehy said valves may be adjusted t (:mit'rnl the di chmfi'a'e of the carhid tram the hopper and the valve Puflltgj. it": zirrangii'ig the swerve tank I'iitLi hull if?) 1% iwrein shwvn Hlti 4h: surilmt. :z iinit'urn'i ngmly if mm will he maintained in the pipp an i the. Weight )1 the lwll 2i \vilhp sisllirmnt. pit t'wr fin-wing tilt gas thrnugh fi'i'fl pipe to the l m rners.

Frmn the lnregning (lescriptinn, takvn in (.flIlIlQCtiOIl with the accompanying (trainings, the constrnct'imi rind nporntion Hi the invunt i'n will he rea'rlilv innleiv mwl with nut requiring," :1 mm"? (-Xu-inlml ixllltttlvt'tlt'lll.

Yttrium changes in tho form, fil' rpt li lttll anal thvminor details n; NH. *rzu'timi may be resulted to without departing 1i :1 the prin ciplo 0r suvriiiving an" (If the nmuntng if this inmntinin an cluin'mxl.

liming tlllh ihm'rilwt my inventii'm, \Vllttt I (lttlli't 12' 17 A2: iirrtvlvm gm gcnvi'zitinig tank htiv in: u gas within it mn'hiil raver will :21" ranged in tllti tank :iinl having in mul it tllr-Itfllili'f( npn'niiw'.

(went? at lk.

1 hivv'vi' l 1 r a (thing wn'eu ti: 3 the luvvvr (llt nt will lmppnr :irmuiil wil j arranged respectively at the upper and iower onds of said casing and another seat arranged intermediate of the ends 01'' saint casing, extending through said rece 'itacle and using, a series of \tllV S arranged on said stcm and positiure it t0 ait'ernately open and t'lOSt the ()PPllli'lQt-t at the upper mnl lnwer 811K141 01' the casing. whereby the can bid is discharged from the hopper in measured quantities, and an intermediate. vaive arranged to engage said intern' ediate seat; when the upper and luvver alves are half way upon and m nim tOnt'lt' lhd hy the ns eunsuiziption for actuating said valves.

An acetylene gun generator (IOHlPliF-iflg a generating funk having thm'nin :1 (turbid hugger provided in its im-rr end with n (his-- charge opnmn g :1 ms swnrtsil t \1 hopper mcr snnil ipr-nin Htl having in lmver einl a alisnharge npeniinn a. valve :ii'rnngwl in sze'nl 0min ll dividing tilt" hither int nn im' unit in r iwnipzzrtnientfi. 2i \"itlV't, stnnn an upper win). it lmvur vzil iun t an interniwtiute VtIlYL, inijusmhly' Siv tttl'u i in Fttlltl atom zinll urrnnywl in such pi Qnion thm'wn that when th-L- upper valve vecl ilw int'rrnmrlinte and lower valves; will he npnnmi :nnl vvhnn the/lower valve is ('l()r-ti'll thv uppvr anil int'vrmetliate valves will he ripened and when the uppvr nnil hmvr valves nro halfway 0pm"; tlm inturinw (lint'cvzilvc \vitl ho (whim-ii, thci'vhy permitting tlw (jztfbltl to (lisvhztrgi? first from the humivr tn the upper conipzlrt'imrnt of thv ttlRlllQ and thvn from the unprr cmnpzn'tilltllt (it the mm tn thv lmvor compartnn nt. :inrl HMRZ'LS mnttnlhwl hv thrg Win-- "ipiion to w 'wmtv li\i \ttlHS.

in twtin-nnv v heiwot l have lam-01mm set my hun in pi'bin-ni-v nt' two mini-willing \vih IdbSQ-vK EMORY Y. PlCNNlNU'lON. Wnnwsw:

J \MiiS It. Stanley, Unwsirs t, lhmcn. 

